ex_go_raindrops/raindrops.go

package raindrops

import "strconv"

const testVersion = 2

func Convert(i int) string {
	var s string
	switch {
	case i%3+i%5+i%7 == 0:
		s = "PlingPlangPlong"
	case i%3+i%5 == 0:
		s = "PlingPlang"
	case i%3+i%7 == 0:
		s = "PlingPlong"
	case i%3 == 0:
		s = "Pling"
	case i%5+i%7 == 0:
		s = "PlangPlong"
	case i%5 == 0:
		s = "Plang"
	case i%7 == 0:
		s = "Plong"
	default:
		s = strconv.Itoa(i)
	}
	return s
}

// Iteration 2 Benchmark
// PASS
// BenchmarkConvert-12	 5000000	       309 ns/op
// ok  	exercism/go/raindrops	1.869s